<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
	<form action="http://127.0.0.1:9090/demo/logon?" method="post">
		<input type="text" name="username" id="username" th:value="${username}"/>
		<input type="text" name="password" id="password" th:value="${password}"/>
		<input type="submit" value="submit">
	</form>
	<p th:text="${msg}">...</p>
</body>
</html>